std::regex_traits::regex_traits (3) Linux Manual Page

std::regex_traits<CharT>::regex_traits – std::regex_traits<CharT>::regex_traits

Synopsis

regex_traits();

Default-constructs the std::regex_traits object, including default-constructing the private std::locale member or any other internal state as necessary.

Parameters

(none)

Return value

(none)

Example

// Run this code

#include <iostream>

#include <regex>
int main()

{
    std::locale::global(std::locale("en_US.utf8"));
    std::regex_traits<char> r1;
    std::regex_traits<wchar_t> r2;
    std::cout << "The regex locale is " << r1.getloc().name() << '\n';
}

Output:

  The regex locale is en_US.utf8